cmcaine

/*
	Show row differences between SELECT statements `new` and `old`.
    
    The first column ("diff") will contain a '+' for rows that are in new and not in old
    and a '-' for rows that are in old and not in new. The rest of the columns are whatever
    new and old return.
    
    If the rows in new and old share ids, then you may want to add an "ORDER BY" at the end
    of the outer SELECT to make the two versions of the rows appear next to each other.